In writing this book I have incurred many debts. The complete list would be too long to write, but a few must be singled out. The thesis on which this book is based owes much to my participation in the European University Institute’s research project Challenge and Response in Western Europe: The History of European Integration, directed by Professor Richard T. Griffiths. My two supervisors have played a crucial role. Richard T. Griffiths, who got me started on this project in the first place, was always accessible and provided frank, clear and useful advice. Karl Christian Lammers’s unfailing and generous support was also essential. Many helpful suggestions were given to me by the three readers of my dissertation: Poul Villaume, Henning Poulsen and Johnny Laursen. The latter subsequently served as a consultant for the book. I am also indebted to friends, colleagues and relatives. I would especially like to thank Marina Vidas and Jens Boel for reading drafts of this text. I am grateful to Lorenza Sebesta and Søren Møller Christensen for help and encouragement. Many of the ideas developed in this book have been presented in conferences, where I have benefitted from comments by Rolv Petter Amdam, Patrick Fridenson, Giuliana Gemelli, Terry Gourvish, Matthias Kipping, Sissel Myklebust, Nick Tiratsoo and Gunnar Yttri. I would further like to thank the European University Institute in Florence, where I began my dissertation, the Department of History, University of Copenhagen, where I finished it, and the Department of Languages and Intercultural Studies, University of Aalborg, where I turned it into a book. The Danish Academy in Rome offered friendly hospitality during a mission to Italian archives. Claus Boye Petersen has generously provided vital computer assistance. I was also helped by Thomas Christiansen, Gunner Lind and Steffen W. Nielsen.
I am grateful to the personnel in the archives of the following institutions: the Danish National Archives, the Labour Mouvement Library and Archive (Denmark), the Danish National Business Archives, the Danish Employers’ Confederation, the Swedish Foreign Ministry, the Swedish Employers’ Confederation, the Federation of Swedish Industries, the Norwegian Foreign Ministry, the Norwegian National Archives, the Public Records Office, the German National Archives, the German Ministry of Foreign Affairs, the Netherlands Ministry of Foreign Affairs, the Dutch National Archives, the Swiss National Archives, the French Ministry of Foreign Affairs, the French Ministry of Economy, Finance and Industry, the French National Archives, the OECD (Paris), the Trade Union Advisory Committee (Paris), UNESCO